surface structure

adipose eyelid Organ ala of nose Organ barbel primordium Organ beak Bone caudal fin lower lobe Organ caudal fin upper lobe Organ caudal peduncle Organ columella nasi Organ dorsal organ Organ endostyle Bone external integument structure Gland Hatschek's pit Organ lower beak Organ median fin fold Organ nuchal hump Organ nuptial tubercle Organ opercular flap Organ paired limb/fin bud Organ papilla Organ rhinarium Organ scale Organ tooth surface structure Organ tunicate tunic Organ unicellular gland Gland upper beak Organ urogenital papilla Organ vent Organ Westoll line Organ